Perceptual luminance nonlinearity-based image data exchange across different display capabilities

    公开(公告)号:US10242650B2

    公开(公告)日:2019-03-26

    申请号:US15960303

    申请日:2018-04-23

    Abstract: A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.

    Perceptual luminance nonlinearity-based image data exchange across different display capabilities
    55.
    发明授权
    Perceptual luminance nonlinearity-based image data exchange across different display capabilities 有权
    基于不同显示能力的感知亮度非线性图像数据交换

    公开(公告)号:US09521419B2

    公开(公告)日:2016-12-13

    申请号:US14925596

    申请日:2015-10-28

    Abstract: A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.

    Abstract translation: 手持成像设备具有被配置为接收参考编码图像数据的数据接收器。 数据包括由外部编码系统编码的参考码值。 参考码值表示参考灰度级,其使用基于在不同光级别对空间频率适应的人类视觉的感知非线性的参考灰度显示功能来选择。 成像设备还具有数据转换器,其被配置为访问成像设备的参考代码值和设备特定代码值之间的代码映射。 设备特定的代码值被配置为产生特定于成像设备的灰度级。 基于代码映射,数据转换器被配置为将参考编码图像数据转码为特定于设备的图像数据,其被编码为特定于设备的代码值。

    Representation and coding of multi-view images using tapestry encoding
    56.
    发明授权
    Representation and coding of multi-view images using tapestry encoding 有权
    使用挂毯编码表示和编码多视图图像

    公开(公告)号:US09451232B2

    公开(公告)日:2016-09-20

    申请号:US14237548

    申请日:2012-09-27

    CPC classification number: H04N13/111 H04N13/139 H04N13/161 H04N19/597

    Abstract: Representation and coding of multi-view images using tapestry encoding are described. A tapestry comprises information on a tapestry image and a world coordinates map associated with the tapestry image, each of which may contain information from one or more perspectives of a scene. Perspective images of a scene can be generated from the tapestry image and the world coordinates map.

    Abstract translation: 描述使用挂毯编码的多视图图像的表示和编码。 挂毯包括关于挂毯图像和与挂毯图像相关联的世界坐标图的信息,每一个可以包含来自场景的一个或多个视角的信息。 可以从挂毯图像和世界坐标图生成场景的透视图像。

    Device and method of improving the perceptual luminance nonlinearity-based image data exchange across different display capabilities
    58.
    发明授权
    Device and method of improving the perceptual luminance nonlinearity-based image data exchange across different display capabilities 有权
    改善基于不同显示能力的感知亮度非线性图像数据交换的装置和方法

    公开(公告)号:US09288499B2

    公开(公告)日:2016-03-15

    申请号:US14735875

    申请日:2015-06-10

    Abstract: A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.

    Abstract translation: 手持成像设备具有被配置为接收参考编码图像数据的数据接收器。 数据包括由外部编码系统编码的参考码值。 参考码值表示参考灰度级,其使用基于在不同光级别对空间频率适应的人类视觉的感知非线性的参考灰度显示功能来选择。 成像设备还具有数据转换器,其被配置为访问成像设备的参考代码值和设备特定代码值之间的代码映射。 设备特定的代码值被配置为产生特定于成像设备的灰度级。 基于代码映射,数据转换器被配置为将参考编码图像数据转码为特定于设备的图像数据,其被编码为特定于设备的代码值。

    Content creation using interpolation between content versions
    59.
    发明授权
    Content creation using interpolation between content versions 有权
    内容创建使用内容版本之间的插值

    公开(公告)号:US09042682B2

    公开(公告)日:2015-05-26

    申请号:US13899942

    申请日:2013-05-22

    Abstract: One or more derived versions of image content may be obtained by interpolating two or more source versions of the same image content. A derived version may be targeted for a class of displays that differs from classes of displays targeted by the source versions. Source images in a source version may have been color graded in a creative process by a content creator/colorist. Interpolation of the source versions may be performed with interpolation parameters having two or more different values in two or more different clusters in at least one of the source images. A normalized version may be used to allow efficient distribution of multiple versions of the same content to a variety of downstream media processing devices, and to preserve or restore image details otherwise lost in one or more of the source versions.

    Abstract translation: 可以通过内插相同图像内容的两个或更多个源版本来获得图像内容的一个或多个派生版本。 派生版本可能针对与源版本所针对的显示类不同的一类显示器。 来源版本中的源图像可能已经由内容创建者/着色者在创意过程中进行了颜色分级。 源版本的插值可以在至少一个源图像中的两个或多个不同簇中具有两个或更多个不同值的插值参数来执行。 可以使用归一化版本来允许将相同内容的多个版本有效地分发到各种下游媒体处理设备,并且保留或恢复在一个或多个源版本中丢失的图像细节。

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